Understanding Slope for Grade 9

Front

Definition of Slope

Back

The rate of change for vertical position compared to horizontal position.

Front

Slope Formula

Back

Front

Positive Slope

Back

Line rises from left to right

Front

Negative Slope

Back

Line falls from left to right

Front

Zero Slope

Back

Horizontal line

Front

Undefined Slope

Back

Vertical line

Front

Slope of y = 3x + 2

Back

m = 3

Front

Slope of y = -1/2x + 4

Back

m = -1/2

Front

Slope of a line through (1, 2) and (3, 6)

Back

From 2 to 6 the function rises 4 and from 1 to 3 the function runs 2. So 4/2 = 2. The slope is 2.

Front

Slope of a line through (4, 5) and (4, 10)

Back

Undefined